Weather & Climate in Ridgemark, CA

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

Ridgemark enjoys a temperate climate with an average annual temperature of 59°F (15°C). Winters average 49°F in January while summers reach 67°F in July / relatively mild seasonal variation. The area gets 330 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 13.7 inches (drier than the 38-inch national average). Air quality is rated Good with a median AQI of 48. The city sits at an elevation of 518 feet.

Temperature

49°F Jan (10°C) 67°F Jul (19°C)

Annual Average	58.6°F
	9% above US avg
January Average	49°F (10°C)
July Average	67°F (19°C)
Sunny Days	330 days/yr

Geography

Elevation	518 ft (158 m)
Area	2.6 sq mi (6.7 km²)
Population Density	1,187/sq mi
Coordinates	36.8082°N, 121.3623°W
Timezone	America/Los_Angeles
County	San Benito County County
Nearest Airport	Monterey Regional (MRY) 31 miles away

Precipitation & Snow

Annual Rainfall 13.7"

64% below US avg

Snowfall 0.1"

Wettest Month (Jan) 3.98"

Driest Month (Jul) 0.08"

Air Quality

AQI Median	48.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively Moderate
Risk Score	85.2 / 100
Social Vulnerability	10.6 / 100
Community Resilience	56.0 / 100

Hazard Breakdown

Tornado	Very Low
Earthquake	Relatively Moderate
Wildfire	Relatively Moderate
Flood	Relatively Low
Hail	Very Low
Strong Wind	Very Low
Heat Wave	Relatively Low
Winter Weather	Very Low
Lightning	Very Low
Drought	Relatively High
Cold Wave	No Rating
Landslide	Relatively Moderate
Avalanche	Very Low

Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

5,484 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.0.

Sep 28, 2004	2004 Parkfield, California Earthquake	M6.0	142 km	8 km
Apr 18, 1990	5 km NNW of Aromas, California	M5.4	30 km	5 km
Oct 21, 2012	24 km NE of San Lucas, California	M5.3	72 km	9 km
Sep 17, 1991	22 km NW of San Simeon, California	M5.2	111 km	9 km
Aug 12, 1998	10 km SW of Ridgemark, California	M5.1	11 km	9 km
Apr 18, 1990	4 km E of Interlaken, California	M5.1	33 km	7 km
Sep 29, 2004	8 km NW of Parkfield, California	M5.0	122 km	11 km
Jan 16, 1993	9 km E of Gilroy, California	M4.9	25 km	7 km
Dec 20, 1994	3 km NW of Parkfield, California	M4.9	128 km	8 km
Apr 23, 1995	22 km NNE of Soledad, California	M4.9	27 km	7 km
May 14, 2002	5 km SSW of Gilroy, California	M4.9	27 km	7 km
Apr 18, 1990	4 km NNW of Aromas, California	M4.9	30 km	6 km
Apr 19, 1996	2 km E of Aromas, California	M4.9	24 km	5 km
Sep 30, 2004	13 km NW of Parkfield, California	M4.9	117 km	10 km
Nov 14, 1993	8 km NW of Parkfield, California	M4.8	123 km	11 km
Sep 28, 2004	12 km SE of Parkfield, California	M4.7	144 km	6 km
May 21, 1996	8 km ESE of East Foothills, California	M4.7	69 km	8 km
Feb 4, 1991	33 km SE of Big Sur, California	M4.7	88 km	9 km
Apr 18, 1990	4 km N of Aromas, California	M4.7	28 km	4 km
Aug 11, 1993	14 km ESE of Alum Rock, California	M4.7	63 km	9 km

Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

50 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 11 injuries.

Date	Rating	Distance	Path	Fatalities
May 5, 1998	EF2	86 km	0.6 mi	0
Mar 11, 1985	EF2	6 km	0.5 mi	0
Apr 27, 1953	EF2	99 km	0.1 mi	0
Jan 11, 1951	EF2	92 km	5.7 mi	0
Dec 14, 2024	EF1	65 km	0.3 mi	0
Nov 15, 2015	EF1	94 km	3.0 mi	0
Apr 14, 2006	EF1	99 km	0.5 mi	0
Dec 16, 2002	EF1	95 km	1.3 mi	0
Dec 20, 2001	EF1	41 km	0.5 mi	0
May 5, 1998	EF1	93 km	0.3 mi	0
Feb 14, 1998	EF1	79 km	3.0 mi	0
Nov 22, 1996	EF1	100 km	0.2 mi	0
Dec 6, 1992	EF1	57 km	7.0 mi	0
Dec 6, 1992	EF1	52 km	1.0 mi	0
Jan 14, 1980	EF1	88 km	0.3 mi	0
Mar 4, 1978	EF1	82 km	1.0 mi	0
Apr 22, 1967	EF1	63 km	0.1 mi	0
Apr 22, 1967	EF1	63 km	1.0 mi	0
Apr 1, 1965	EF1	43 km	0.1 mi	0
Apr 1, 1958	EF1	90 km	2.0 mi	0

Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Tsunami History

6 tsunamis recorded within 500 km. Highest wave on record: 4.5 m (15 ft).

Year	Location	Cause	Max Wave	Deaths	Distance
1868	N. CALIFORNIA	Eruption + Earthquake	4.5 m	30	119 km
1989	N. CALIFORNIA	Earthquake	1.0 m	62	53 km
1856	N. CALIFORNIA	Eruption + Earthquake	0.6 m	—	113 km
1906	N. CALIFORNIA	Eruption + Earthquake	0.1 m	—	141 km
1901	MONTEREY BAY, N. CALIFORNIA	Eruption + Earthquake	—	—	119 km
1865	N. CALIFORNIA	Eruption + Earthquake	—	—	65 km

Source: NOAA/NCEI Historical Tsunami Database.

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: SCU LIGHTNING COMPLEX (405,787 acres, 2020).

Year	Name	Acres Burned	Distance
2020	SCU LIGHTNING COMPLEX	405,787	77 km
2008	BASIN COMPLEX	164,537	69 km
2016	SOBERANES	131,921	62 km
2020	DOLAN	124,382	82 km
2020	CZU AUG LIGHTNING	85,894	85 km
2008	BASIN COMPLEX (INDIANS)	59,095	75 km
1985	GORDA-RAT	52,474	83 km
2020	RIVER	51,582	40 km
2007	LICK	47,424	47 km
1999	KIRK COMPLEX (HARE)	43,054	84 km
1985	CHERRY	41,654	85 km
2005	UNNAMED	39,070	98 km
2006	CANYON	36,851	61 km
1999	KIRK COMPLEX (FIVE)	36,162	63 km
1996	WILD	24,439	95 km
1984	UNNAMED	23,122	98 km
1985	LOSGATOSIV	20,357	84 km
1996	UNNAMED	19,243	97 km
2024	BOONE	17,701	99 km
2003	ANNIE	17,383	48 km

Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	49°F (10°C)	4.0 in	Wettest
February	49°F (9°C)	3.4 in
March	51°F (10°C)	3.2 in
April	54°F (12°C)	1.7 in
May	58°F (14°C)	0.3 in
June	63°F (17°C)	0.1 in
July	67°F (19°C)	0.1 in	Driest
August	69°F (20°C)	0.1 in	Warmest
September	67°F (19°C)	0.3 in
October	62°F (17°C)	0.9 in
November	53°F (12°C)	3.0 in
December	47°F (9°C)	3.3 in	Coldest

Ridgemark has a seasonal temperature swing of 22°F / from 47°F in December to 69°F in August. Total annual precipitation is 20.4 inches, with January being the wettest month (4.0") and July the driest (0.1").

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